大跨钢箱拱桥
Large-span Steel Arch Bridge
大跨度钢拱桥
Long-span steel arch bridges
long span steel arch bridge
钢-砼组合拱桥
Steel-concrete arch bridge
钢箱拱肋
steel box arch ribs
steel box arch rib
steel box arch
steel box girder arch rib
桁式钢拱桥
trussed steel through arch bridge
两铰钢拱桥
two-hinged steel arch bridge